Adjustable mirror system

ABSTRACT

An adjustable mirror system, including a flexible mirror configured to change curvature, a shaft coupled to the mirror, a cylinder, wherein the cylinder is configured to receive the shaft and a fluid, and an actuator coupled to the housing, wherein the actuator increases and decreases the pressure of the fluid in the cylinder to drive the shaft and change the curvature of the flexible mirror.

CROSS-REFERENCE TO RELATED APPLICATION

The present application is a continuation of U.S. Nonprovisional patentapplication Ser. No. 14/979,499, filed Dec. 27, 2015, the disclosure ofwhich is hereby incorporated by reference in its entirety.

FIELD OF THE INVENTION

The disclosure generally relates to a vehicle mirror system.

BACKGROUND OF THE INVENTION

This section is intended to introduce the reader to various aspects ofart that may be related to various aspects of the present invention,which are described and/or claimed below. This discussion is believed tobe helpful in providing the reader with background information tofacilitate a better understanding of the various aspects of the presentinvention. Accordingly, it should be understood that these statementsare to be read in this light, and not as admissions of prior art.

Vehicles typically have multiple mirrors that increase a driver'ssituational awareness. For example, a vehicle may have rearview and sidemirrors. In operation, a driver may use these mirrors for parking,backing up, changing lanes, etc.

SUMMARY OF THE INVENTION

The present disclosure is directed to an adjustable mirror system. Theadjustable mirror system may include a flexible mirror configured tochange curvature, a shaft coupled to the mirror, and a cylinder. Inoperation, the cylinder is configured to receive the shaft and a fluid.An actuator may couple to the housing to increase and decrease thepressure of the fluid in the cylinder, which drives the shaft andchanges the curvature of the flexible mirror.

An aspect of the disclosure includes an adjustable mirror system with aflexible mirror. The flexible mirror capable of changing curvature. Ashaft couples to the flexible mirror, and a cylinder receives the shaft,wherein the shaft moves within the cylinder to change the curvature ofthe flexible mirror.

Another aspect of the disclosure includes a vehicle adjustable mirrorsystem that includes a vehicle with an adjustable mirror system. Theadjustable mirror system includes a flexible mirror that changescurvature, a shaft coupled to the mirror, and a housing that couples tothe flexible mirror. In operation, the shaft moves within the housing tochange the curvature of the flexible mirror.

BRIEF DESCRIPTION OF THE DRAWINGS

Various features, aspects, and advantages of the present invention willbe better understood when the following detailed description is readwith reference to the accompanying figures in which like charactersrepresent like parts throughout the figures, wherein:

FIG. 1 is an interior view of an embodiment of a vehicle with anadjustable mirror system;

FIG. 2 is a cross-sectional side view of an embodiment of an adjustablemirror system in a concave position;

FIG. 3 is a cross-sectional side view of an embodiment of an adjustablemirror system in a flat position;

FIG. 4 is a cross-sectional side view of an embodiment of an adjustablemirror system in a convex position;

FIG. 5 is a cross-sectional side view of an embodiment of an adjustablemirror system; and

FIG. 6 is a cross-sectional side view of an embodiment of an adjustablemirror system.

DETAILED DESCRIPTION

One or more specific embodiments of the present invention will bedescribed below. These embodiments are only exemplary of the presentinvention. Additionally, in an effort to provide a concise descriptionof these exemplary embodiments, all features of an actual implementationmay not be described in the specification. It should be appreciated thatin the development of any such actual implementation, as in anyengineering or design project, numerous implementation-specificdecisions must be made to achieve the developers' specific goals, suchas compliance with system-related and business-related constraints,which may vary from one implementation to another. Moreover, it shouldbe appreciated that such a development effort might be complex and timeconsuming, but would nevertheless be a routine undertaking of design,fabrication, and manufacture for those of ordinary skill having thebenefit of this disclosure.

The embodiments discussed below include an adjustable mirror system witha flexible mirror capable of changing between convex, flat, and concavepositions. The adjustable mirror system may be included in a vehicle toprovide a user with greater flexibility in viewing objects. For example,the adjustable mirror system may enable a user to increase their fieldof vision, magnify objects, or view objects with minimal or nodistortions. As will be discussed in detail below, the adjustable mirrorsystem may adjust the curvature of the flexible mirror using a manualand/or powered actuator.

FIG. 1 is an interior view of an embodiment of a vehicle 10 with anadjustable mirror system 12. As illustrated, the vehicle 10 may includeadjustable mirror systems 12 for use as rear view mirrors, side mirrors,vanity mirrors (e.g., vanity mirrors in sun visors), etc. In operation,the adjustable mirror system 12 enables a user to change a curvature ofa flexible mirror 14. For example, the adjustable mirror system 12 maytransition the flexible mirror 14 between convex, flat, and concavepositions.

These different positions may assist a user in viewing objects insideand outside of the vehicle 10. For example, the user may want toincrease their field of vision. In these situations, the user may usethe adjustable mirror system 12 to transition a flexible mirror 14 to aconvex position. In the convex position, the user may be able to seemore of the rear part of the vehicle and/or around the exterior of thevehicle. This may enable a user to better see what kids or otherpassengers are doing in the back seats, or to view traffic around thevehicle 10. In another situation, the user may use the adjustable mirrorsystem 12 to change the flexible mirror 14 to a concave position inorder to magnify objects. For example, a user may change the flexiblemirror 14 into a concave position to magnify a user's face (e.g., toshave, to apply makeup, etc.). In still another situation, a user mayuse the adjustable mirror system 12 to change the flexible mirror to aflat position. In the flat position, a user may better perceive theactual distances of objects; instead of the distorted views from concaveand convex positions of the flexible mirror 14. In some embodiments, theflexible mirror 14 may be include a material such as a reflective shapememory material and/or a reflective flexible material (e.g., metal) thatenables the flexible mirror to change curvature. In some embodiments,the flexible mirror 14 may include a flexible substrate (e.g., metal,plastic, etc.) with a reflective coating.

FIG. 2 is a cross-sectional side view of an embodiment of an adjustablemirror system 12 in a concave position. The adjustable mirror system 12includes a mirror housing 30 that receives the flexible mirror 14. Asillustrated, an outer edge 32 of the flexible mirror 14 may couple tothe mirror housing 30 providing an attachment point 34 that enables theflexible mirror 14 to transition between concave, flat, and convexpositions.

In FIG. 2, the flexible mirror 14 is in a concave position (e.g.,unactuated position). In order to actuate the flexible mirror 14, theadjustable mirror system 12 includes an actuator 36 (e.g., manual and/orpowered actuator). The actuator 36 in FIG. 2 is a powered actuator 36(e.g., pump, motor, etc.) that transitions the flexible mirror 14between concave, flat, convex positions. For example, the poweredactuator 36 may increase the pressure of a fluid 38 within a cylinder 40by either pumping fluid 38 into the cylinder 40 or by driving a piston42 into the cylinder 40. As the pressure of the fluid 38 increases inthe cylinder 40, the fluid drives a shaft 44 in axial direction 46. Theshaft 44, which couples to the rear 48 of the flexible mirror 14, thendrives the flexible mirror 14. As the shaft 44 moves in axial direction46 the flexible mirror 14 transitions from a concave position to a flatposition (seen in FIG. 3) and then to a convex position (seen in FIG.4).

The adjustable mirror system 12 blocks the fluid 38 from escaping fromthe cylinder 40 using one or more seals 50 (e.g., gasket, O-ring). Forexample, the adjustable mirror system 12 may include 1, 2, 3, 4, 5, ormore seals 50. The seals 50 may couple to the shaft 44 and/or to thecylinder 40 to form a seal between the shaft 44 and the cylinder 40.

In some embodiments, the position of the flexible mirror 14 may becontrolled with a controller 52. The controller 52 may include one ormore processors 54 that execute instructions stored on one or morememories 56. For example, the controller 52 may receive a signal from auser (e.g., through buttons, knobs, touchscreen, etc.) that indicatesthe desired shape of the flexible mirror 14 (e.g., concave, flat, orconvex). When the controller 52 receives the signal, the processor 54executes instructions stored on the memory 56 to control the actuator36, which then transitions the flexible mirror 14 to the desired shape.

FIG. 3 is a cross-sectional side view of an embodiment of an adjustablemirror system 12 in a flat position. As explained above, in order totransition the flexible mirror 14 from the concave position to the flatposition, the actuator 36 drives the piston 42 in axial direction 46. Asthe piston 42 moves in axial direction 46, the piston 42 increases thepressure of the fluid 38 driving the shaft 44 in axial direction 46until the flexible mirror 14 reaches the flat position.

FIG. 4 is a cross-sectional side view of an embodiment of an adjustablemirror system 12 in a convex position. If the user wants, the flexiblemirror 14 in a convex position the actuator 36 continues to drive thepiston 42 in axial direction 46. As the piston 42 moves in axialdirection 46, the piston 42 increases the pressure of the fluid 38driving the shaft 44 in axial direction 46. The flexible mirror 14 thentransitions from the flat position to the convex position. In order forthe flexible mirror 14 to return to the concave position, the actuator36 withdraws the piston 42. The decrease in pressure enables theflexible mirror 14 to return to the original concave position (seen inFIG. 2). For example, the flexible mirror 14 may be made out of aresilient material (e.g., shape memory material) that returns to itsoriginal shape (e.g., concave) once a biasing force is removed. In someembodiments, when the piston 42 is withdrawn a vacuum may form in thecylinder 40 that pulls the shaft 44 and/or enables atmospheric pressureto drive the flexible mirror 14 in direction 58. As the flexible mirror14 moves in axial direction 58, the flexible mirror 14 returns to theflat or concave position.

FIG. 5 is a cross-sectional side view of an embodiment of an adjustablemirror system 12 with a manual actuator 36. The manual actuator 36 maybe a shaft 70 (e.g., threaded shaft) that passes through an aperture 72in the mirror housing 30. The aperture 72 is fluidly coupled to thecylinder 40 enabling the shaft 70 to influence the pressure of the fluid38. For example, to increase the pressure of the fluid 38 within thecylinder 40, the shaft 70 may be driven (e.g., threaded incircumferential directions 76, 78) into the aperture 72 in direction 74.The further the shaft 70 passes through the aperture 72 the more fluid38 is displaced. The displaced fluid 38 increases the pressure withinthe cylinder 40 driving the shaft 44 in axial direction 46. As the shaft44 moves in axial direction 46, the flexible mirror 14 changes from theflat position to the convex position. Likewise, to return the flexiblemirror 14 to the flat position, the shaft 70 may be withdrawn in axialdirection 80. When the shaft 70 moves in axial direction 80, fluid 38 isable to enter the aperture 72, which decreases the pressure within thecylinder 40. In some embodiments, the flexible mirror 14 may be made outof a resilient material (e.g., shape memory material) that returns toits original shape (e.g., concave) once a biasing force is removed. Insome embodiments, when the shaft 70 is withdrawn a vacuum may form inthe cylinder 40 that pulls the shaft 44 and/or enables atmosphericpressure to drive the flexible mirror 14 in direction 58. As theflexible mirror 14 moves in axial direction 58, the flexible mirror 14returns to the flat or concave position.

FIG. 6 is a cross-sectional side view of an embodiment of an adjustablemirror system 12. In some embodiments, instead of a fluid within themirror housing 30, the shaft 44 may be moved in axial directions 46 and58 to change the position of the flexible mirror 14. For example, theshaft 44 may couple to the actuator 36, which drives movement of theshaft 44. As the shaft 44 moves axially, the flexible mirror 14transitions between concave, flat, and convex positions. In someembodiments, the actuator 36 may also move the shaft 44 in otherdirections. For example, the actuator 36 may move the shaft in axialdirections 74 and 80, among others, to adjust the view of the flexiblemirror 14. While a powered actuator 36 is illustrated, in someembodiments a user may manually adjust the shaft 44. For example, theshaft 44 may be a threaded shaft that rotates with user input to changethe position of the shaft 44, thereby transitioning the flexible mirror14 between concave, flat, and convex positions.

While the invention may be susceptible to various modifications andalternative forms, specific embodiments have been shown by way ofexample in the drawings and have been described in detail herein.However, it should be understood that the invention is not intended tobe limited to the particular forms disclosed. Rather, the invention isto cover all modifications, equivalents, and alternatives falling withinthe spirit and scope of the invention as defined by the followingappended claims.

What is claimed is:
 1. An adjustable vehicle mirror system, comprising:a housing; a flexible mirror configured to change curvature, wherein anouter edge of the flexible mirror directly couples to the housing; acylinder operably coupled to the flexible mirror, wherein the cylinderis configured to receive a fluid; and an actuator coupled to thehousing, wherein the actuator increases and decreases a pressure of thefluid in the cylinder to change the curvature of the mirror.
 2. Thesystem of claim 1, comprising a shaft coupled to the flexible mirror,wherein the increase and decrease in pressure drives the shaft to changethe curvature of the flexible mirror.
 3. The system of claim 1, whereinthe actuator is a manual actuator.
 4. The system of claim 1, wherein theactuator is a powered actuator.
 5. The system of claim 4, wherein thepowered actuator is a pump.
 6. The system of claim 4, wherein thepowered actuator is a motor that drives an actuator shaft.
 7. The systemif claim 1, wherein the flexible mirror transitions between a concave, aconvex position, and a flat position.
 8. The system of claim 1, whereinthe outer edge defines a perimeter, and wherein the entire perimeter ofthe outer edge couples to the housing.
 9. The system of claim 1,comprising a controller configured to control the actuator to transitionthe flexible mirror.
 10. The system of claim 1, wherein the flexiblemirror comprises a shape memory material.
 11. The system of claim 1,wherein the flexible mirror comprises a substrate with a reflectivecoating.
 12. An adjustable vehicle mirror system, comprising: a housing;a flexible mirror configured to change curvature, wherein an outer edgeof the flexible mirror directly couples to the housing; a shaft coupledto the flexible mirror; and wherein the shaft is configured totransition the flexible mirror between a concave position, a convexposition, and a flat position.
 13. The system of claim 12, comprising acylinder configured to receive the shaft.
 14. The system of claim 12,wherein the shaft is threaded.
 15. The system of claim 12, comprising apowered actuator coupled to the shaft.
 16. The system of claim 15,comprising a controller coupled to the powered actuator and configuredto control the powered actuator to drive the shaft.
 17. The system ofclaim 12, comprising a vehicle with the adjustable mirror system. 18.The system of claim 12, wherein the flexible mirror comprises a shapememory material.
 19. The system of claim 12, wherein the flexible mirrorcomprises a substrate with a reflective coating.
 20. An adjustablevehicle mirror system, comprising: a vehicle; an adjustable mirrorsystem coupled to the vehicle, comprising: a housing; a flexible mirrorconfigured to change curvature, wherein an outer edge of the flexiblemirror directly couples to the housing; a cylinder operably coupled tothe flexible mirror, wherein the cylinder is configured to receive afluid; and an actuator coupled to the housing, wherein the actuatorincreases and decreases a pressure of the fluid in the cylinder tochange the curvature of the mirror.